/Engine/Plugins/Editor/UVEditor/Source/UVEditorTools/Public/ContextObjects/UVToolContextObjects.h
Allows tools to interact with the assets and their UV layers
[UCLASS](Programming/UnrealArchitecture/Reference/Classes#classdeclaration)() class UUVToolAssetAndChannelAPI : public [UUVToolContextObject](API\Plugins\UVEditorTools\ContextObjects\UUVToolContextObject)
TUniqueFunction...
GetCurrentChannelVisibilityFunc
TUniqueFunction...
NotifyOfAssetChannelCountChangeFunc
TUniqueFunction...
RequestChannelVisibilityChangeFunc